Re: Parallel heap vacuum - Mailing list pgsql-hackers

From Masahiko Sawada
Subject Re: Parallel heap vacuum
Date
Msg-id CAD21AoCnLa2y0LV39dPvYD4QYpRz-xqPJFCnjwzS7DhnvdSRZw@mail.gmail.com
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In response to Re: Parallel heap vacuum  (Melanie Plageman <melanieplageman@gmail.com>)
List pgsql-hackers
On Fri, Apr 4, 2025 at 11:05 AM Melanie Plageman
<melanieplageman@gmail.com> wrote:
>
> On Tue, Apr 1, 2025 at 5:30 PM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
> >
> >
> > I've attached the new version patch. There are no major changes; I
> > fixed some typos, improved the comment, and removed duplicated codes.
> > Also, I've updated the commit messages.
>
> I haven't looked closely at this version but I did notice that you do
> not document that parallel vacuum disables eager scanning. Imagine you
> are a user who has set the eager freeze related table storage option
> (vacuum_max_eager_freeze_failure_rate) and you schedule a regular
> parallel vacuum. Now that table storage option does nothing.

Good point. That restriction should be mentioned in the documentation.
I'll update the patch.

Regards,

--
Masahiko Sawada
Amazon Web Services: https://aws.amazon.com



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